﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;

namespace BusinessLibrary
{
    public class MD5Security
    {

        public static string GetMd5Hash(string input)
        {
            MD5 md5Hash = MD5.Create();
            byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input));
            StringBuilder sbuilder = new StringBuilder();
            for (int i = 0; i < data.Length; i++)
            {
                sbuilder.Append(data[i].ToString("x2"));
            }
            return sbuilder.ToString();
        }

        public static bool VerifyMd5Hash (string input, string hash)
        {
            // Hash the input. 
            string hashOfInput = GetMd5Hash(input);

            // Create a StringComparer an compare the hashes.
            StringComparer comparer = StringComparer.OrdinalIgnoreCase;

            if (0 == comparer.Compare(hashOfInput, hash))
            {
                return true;
            }
            else
            {
                return false;
            }
        }
    }
}
